Browse Reference Articles
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Electricity
Electricity is a property of matter that results from the presence or movement of electric charge. Together with magnetism, it constitutes the fundamental interaction known as electromagnetism. ... > more -
Energy and the Environment
Solar Energy
Renewable Energy
Geomagnetic Storms
Environmental Science
Graphene
Solar cell
A solar cell (or a "photovoltaic" cell) is a device that converts photons from the sun (solar light) into electricity. In general, a solar cell that includes both solar and nonsolar sources of light ... > more -
Military aviation
Military aviation is used to attack or defend a country through the sky. There are many types of military aircraft, but the basic types of military aircraft are bombers, fighters, Fighter bombers, ... > more -
Luminosity
In general physics, luminosity (more properly called luminance) is the density of luminous intensity in a given ... > more -
Traffic engineering (transportation)
Traffic engineering is a branch of civil engineering that uses engineering techniques to achieve the safe and efficient movement of people and goods. It focuses mainly on research and construction of ... > more -
Plasma (physics)
In physics and chemistry, a plasma is an ionized gas, and is usually considered to be a distinct phase of matter. "Ionized" in this case means that at least one electron has been dissociated from a ... > more -
Seismic wave
A seismic wave is a wave that travels through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion. There are two types of seismic wave, namely, 'body wave' and ... > more
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